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In order for noncached_init() to operate correctly, SoCs must set up a
custom page table with fine-grained (2MiB) sections, which can be
configured from noncached_init().
This is currently performed by arch/arm/cpu/armv8/{fsl-lsch3,zynqmp}/cpu.c
by cut/pasting and re-implementing mmu_setup, enable_caches(), etc. There
are some other reasons for the duplication there though, such as enabling
icache early, and enabling dcaching earlier with a different configuration.
This change makes mmu_setup() a weak implementation, so that the MMU setup
code can be replaced without having to duplicate other code that calls it.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
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|---|---|---|
| .. | ||
| fsl-layerscape | ||
| hisilicon | ||
| zynqmp | ||
| cache.S | ||
| cache_v8.c | ||
| config.mk | ||
| cpu.c | ||
| exceptions.S | ||
| generic_timer.c | ||
| Kconfig | ||
| Makefile | ||
| start.S | ||
| tlb.S | ||
| transition.S | ||
| u-boot-spl.lds | ||
| u-boot.lds | ||